Consider the following reaction: CaCO3(s) ---> CaO(s) + CO2(g) estimate delta G

Question

Consider the following reaction: CaCO3(s) ---> CaO(s) + CO2(g) estimate delta G for this reaction at each of the following temperatures: assume that delta h^o and delta s^o do not change to much within the given temperature range. Part 1. 1445k Part 2. 1100k Consider the following reaction: CaCO3(s) ---> CaO(s) + CO2(g) estimate delta G for this reaction at each of the following temperatures: assume that delta h^o and delta s^o do not change to much within the given temperature range. Part 1. 1445k Part 2. 1100k Part 1. 1445k Part 2. 1100k

Explanation / Answer

we go to the tables & figure out the dH & dS (which are at 298K)

then, assuming that " Delta H and Delta S do not change too much within the given temperature range.",,,,, we use the formula:

dG = dH - TdS

dH = (dHf products) - dHf reactants)
dH = (dHf CaO & dHf CO2) - (dHf CaCO3)
dH = (

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